Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 128, NWS Shreveport, LA

April 17, 2019Bowie County, Red River County, Texas; Little River County, Sevier County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 17, 2019, 11:19 PM CDT for Bowie County, Red River County, Texas; Little River County, Sevier County, Arkansas. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 17, 2019, 11:19 PM CDT (04:19 UTC)
Expired
Apr 18, 2019, 12:00 AM CDT
In force
41 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Little River County, AR, Sevier County, AR, Bowie County, TX, Red River County, TX

The radar

The Shreveport radar (KSHV), 150 km from the middle of the area, began a volume at 04:21 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 4.3 hours before the alert went out and 278 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2019-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2665 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2019-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2665 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1143 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
1.8
Supercell composite
11.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 17, 10:15 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Apr 17, 10:15 PM CDT, 1 hour 4 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Apr 17, 11:56 AM CDT, 11 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
1156 AM CDT Wed Apr 17 2019

ARZ050-051-059-060-070-OKZ077-TXZ096-097-108>112-124-125-136-149-
165>167-181700-
Sevier-Howard-Little River-Hempstead-Miller-McCurtain-Red River-
Bowie-Franklin-Titus-Camp-Morris-Cass-Wood-Upshur-Smith-Cherokee-
Angelina-San Augustine-Sabine-
1156 AM CDT Wed Apr 17 2019

This Hazardous Weather Outlook is for portions of southwest
Arkansas, southeast Oklahoma, east Texas, and northeast Texas.

.DAY ONE...This Afternoon and Tonight...

Strong to severe thunderstorms remain possible during tonight and
into Thursday morning. Large hail, damaging winds, and even a
tornado or two remain possible. Locally heavy rainfall may lead
to isolated flash flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

Strong to severe thunderstorms will continue into Thursday. Large
hail, damaging winds, and a tornado or two will be possible. In
addition, locally heavy rainfall may lead to isolated flash
flooding. The severe weather threat should end from west to east
by Thursday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight and into Thursday.

ARZ061-071>073-LAZ001>006-010>014-TXZ126-137-138-150>153-181700-
Nevada-Lafayette-Columbia-Union-Caddo-Bossier-Webster-Claiborne-
Lincoln-De Soto-Red River-Bienville-Jackson-Ouachita-Marion-Gregg-
Harrison-Rusk-Panola-Nacogdoches-Shelby-
1156 AM CDT Wed Apr 17 2019

This Hazardous Weather Outlook is for portions of south central
Arkansas, southwest Arkansas, north central Louisiana, northwest
Louisiana, east Texas, and northeast Texas.

.DAY ONE...This Afternoon and Tonight...

A Flash Flood Watch is in effect 7 PM CDT this Wednesday evening
until 7 PM CDT Thursday evening.

Strong to severe thunderstorms are possible tonight and into
Thursday. Large hail, damaging winds, and a tornado or two remain
possible. Locally heavy rainfall may lead to flash flooding,
especially where soils remain very wet from recent heavy rains in
southern Arkansas and northern Louisiana.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

A Flash Flood Watch is in effect 7 PM CDT this Wednesday evening
until 7 PM CDT Thursday evening.

Strong to severe thunderstorms will continue into Thursday. Large
hail, damaging winds, and a tornado or two remain possible. In
addition, locally heavy rainfall may lead to flash flooding,
especially where soils remain very wet from recent heavy rains in
southern Arkansas and northern Louisiana. The severe weather
threat should end from west to east during Thursday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight and into Thursday.

LAZ017>022-181700-
Sabine-Natchitoches-Winn-Grant-Caldwell-La Salle-
1156 AM CDT Wed Apr 17 2019

This Hazardous Weather Outlook is for portions of north central
Louisiana and northwest Louisiana.

.DAY ONE...This Afternoon and Tonight...

Strong to severe thunderstorms are possible late tonight and more
likely during the daytime hours of Thursday. Large hail, damaging
winds, and a tornado or two will be possible. Locally heavy
rainfall may lead to isolated flash flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

Strong to severe thunderstorms are possible during the daytime
hours of Thursday. Large hail, damaging winds, and a tornado or
two remain possible. In addition, locally heavy rainfall may lead
to isolated flash flooding. The severe weather threat should end
from west to east by late Thursday afternoon or early Thursday
evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed by Thursday morning.

In the hours before

Special weather statement, Apr 17, 8:46 PM CDT, 2 hours 33 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Special weather statement, Apr 17, 9:38 PM CDT, 1 hour 41 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Special weather statement, Apr 17, 10:40 PM CDT, 39 minutes before
Special Weather Statement
National Weather Service Shreveport LA
1040 PM CDT Wed Apr 17 2019

OKZ077-TXZ096-180430-
McCurtain OK-Red River TX-
1040 PM CDT Wed Apr 17 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MCCURTAIN AND
NORTHWESTERN RED RIVER COUNTIES UNTIL 1130 PM CDT...

At 1039 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles east of Raymond Gary State Park, or 21 miles east of Hugo,
moving northeast at 40 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Manchester, Wright City, Valliant, Millerton, Farmers Hill, Rufe,
Smithville, Watson, Battiest, Pickens, Mount Herman, Sherwood,
Redland, Kanawha, Glover, Kiomatia, Slim, Bethel, Ringold and Golden.

LAT...LON 3451 9447 3450 9447 3378 9513 3387 9530
      3391 9528 3389 9526 3389 9525 3393 9525
      3396 9523 3394 9516 3423 9515 3425 9505
      3451 9505
TIME...MOT...LOC 0339Z 211DEG 37KT 3402 9513

12
Special weather statement, Apr 17, 10:49 PM CDT, 30 minutes before
Special Weather Statement
National Weather Service Shreveport LA
1049 PM CDT Wed Apr 17 2019

ARZ059-OKZ077-TXZ096-097-180430-
Little River AR-McCurtain OK-Bowie TX-Red River TX-
1049 PM CDT Wed Apr 17 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LITTLE RIVER...
SOUTHEASTERN MCCURTAIN...NORTHWESTERN BOWIE AND SOUTHEASTERN RED
RIVER COUNTIES UNTIL 1130 PM CDT...

At 1049 PM CDT, Doppler radar was tracking a strong thunderstorm near
Boxelder, moving northeast at 45 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Boxelder, Avery, Annona, Haworth, Bokhoma, Moon, Cerrogordo,
Goodlake, Harris, Goodwater, Shinewell, English and America.

LAT...LON 3390 9440 3342 9490 3350 9502 3405 9467
TIME...MOT...LOC 0349Z 214DEG 38KT 3351 9493

12
Special weather statement, Apr 17, 10:54 PM CDT, 25 minutes before
Special Weather Statement
National Weather Service Shreveport LA
1054 PM CDT Wed Apr 17 2019

ARZ050-051-OKZ077-180445-
Howard AR-Sevier AR-McCurtain OK-
1054 PM CDT Wed Apr 17 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SEVIER...
NORTHWESTERN HOWARD AND EAST CENTRAL MCCURTAIN COUNTIES UNTIL 1145 PM
CDT...

At 1053 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles northwest of De Queen, moving northeast at 30 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
De Queen, Gillham, Eagletown and West Line.

LAT...LON 3419 9447 3419 9424 3436 9425 3435 9414
      3431 9407 3394 9449 3405 9466 3437 9447
TIME...MOT...LOC 0353Z 218DEG 27KT 3411 9451

12

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 10:49 PM CDTSpecial Weather StatementSHVRed River41 min
Apr 18, 1:58 AM CDTLake Wind AdvisorySHVAngelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more17 hr
Apr 18, 2:37 AM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches, Rusk, Smith53 min
Apr 18, 2:41 AM CDTSpecial Weather StatementSHVSmith64 min
Apr 18, 3:25 AM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches65 min
Apr 18, 3:30 AM CDTSevere Thunderstorm WarningSHVCherokee, Harrison, Nacogdoches, Panola, Rusk, Shelby60 min
Apr 18, 3:35 AM CDTSpecial Weather StatementSHVGregg, Harrison, Upshur40 min
Apr 18, 4:23 AM CDTSevere Thunderstorm WarningSHVHarrison, Nacogdoches, Panola, Shelby67 min
Apr 18, 4:35 AM CDTSpecial Weather StatementSHVAngelina, San Augustine, Shelby40 min
Apr 18, 6:08 AM CDTSpecial Weather StatementSHVSabine52 min
Apr 18, 10:00 AM CDTRiver Flood WarningSHVAngelina, Houston, Polk, Trinity, Tyler49 days
Apr 18, 10:03 AM CDTRiver Flood WarningSHVFranklin, Morris, Red River, Titus70 hr
Apr 18, 10:04 AM CDTRiver Flood WarningSHVGregg, Smith, Upshur, Wood55 days
Apr 18, 10:06 AM CDTRiver Flood WarningSHVWood70 hr
Apr 18, 5:27 AM CDTSpecial Weather StatementSHVWebster48 min
Apr 18, 6:47 AM CDTSevere Thunderstorm WarningSHVDe Soto, Natchitoches, Red River, Sabine43 min
Apr 18, 7:28 AM CDTSevere Thunderstorm WarningSHVBienville, Jackson, Natchitoches, Red River, Winn29 min
Apr 18, 8:17 AM CDTTornado WarningSHVGrant, Natchitoches29 min
Apr 18, 8:46 AM CDTSevere Thunderstorm WarningSHVGrant, Natchitoches, Winn44 min
Apr 18, 9:28 AM CDTSevere Thunderstorm WarningSHVGrant, Natchitoches, Winn62 min
Apr 18, 10:19 AM CDTSevere Thunderstorm WarningSHVCaldwell, Jackson, Ouachita, Winn37 min
Apr 18, 4:46 PM CDTSpecial Weather StatementSHVBossier44 min
Apr 17, 10:54 PM CDTSpecial Weather StatementSHVSevier51 min
Apr 17, 11:03 PM CDTSevere Thunderstorm WarningSHVHoward, Sevier42 min
Apr 18, 12:00 AM CDTSpecial Weather StatementSHVSevier45 min
Apr 18, 12:48 AM CDTSpecial Weather StatementSHVNevada42 min
Apr 18, 1:06 AM CDTSevere Thunderstorm WarningSHVNevada24 min
Apr 18, 1:12 AM CDTSpecial Weather StatementSHVNevada33 min
Apr 18, 2:04 AM CDTSpecial Weather StatementSHVNevada41 min
Apr 18, 3:46 AM CDTSpecial Weather StatementSHVLafayette, Miller44 min
Apr 18, 4:28 AM CDTSpecial Weather StatementSHVColumbia, Lafayette, Nevada32 min
Apr 18, 4:46 AM CDTFlash Flood WarningSHVHempstead, Nevada3 hr
Apr 18, 5:19 AM CDTSpecial Weather StatementSHVUnion41 min

Nearby

Severe Thunderstorm Warnings in Texas, 2019Severe Thunderstorm Warnings in Arkansas, 2019Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.